fix: support pasting numbers with comma decimal separator in budget and bookings

Handle European number formats (e.g. 1.150,32) by detecting the last
separator as decimal and stripping thousand separators. Applied to
budget inline edit cells, add item row, and reservation price field.

Fixes #498

client/src/components/Budget/BudgetPanel.tsx

@@ -75,9 +75,29 @@ function InlineEditCell({ value, onSave, type = 'text', style = {}, placeholder
     if (v !== value) onSave(v)
   }
 
+  const handlePaste = (e) => {
+    if (type !== 'number') return
+    e.preventDefault()
+    let text = e.clipboardData.getData('text').trim()
+    // Strip everything except digits, dots, commas, minus
+    text = text.replace(/[^\d.,-]/g, '')
+    // Remove all thousand separators (dots or commas before 3-digit groups), keep last separator as decimal
+    const lastComma = text.lastIndexOf(',')
+    const lastDot = text.lastIndexOf('.')
+    const decimalPos = Math.max(lastComma, lastDot)
+    if (decimalPos > -1) {
+      const intPart = text.substring(0, decimalPos).replace(/[.,]/g, '')
+      const decPart = text.substring(decimalPos + 1)
+      text = intPart + '.' + decPart
+    } else {
+      text = text.replace(/[.,]/g, '')
+    }
+    setEditValue(text)
+  }
+
   if (editing) {
     return <input ref={inputRef} type="text" inputMode={type === 'number' ? 'decimal' : 'text'} value={editValue}
-      onChange={e => setEditValue(e.target.value)} onBlur={save}
+      onChange={e => setEditValue(e.target.value)} onBlur={save} onPaste={handlePaste}
       onKeyDown={e => { if (e.key === 'Enter') save(); if (e.key === 'Escape') { setEditValue(value ?? ''); setEditing(false) } }}
       style={{ width: '100%', border: '1px solid var(--accent)', borderRadius: 4, padding: '4px 6px', fontSize: 13, outline: 'none', background: 'var(--bg-input)', color: 'var(--text-primary)', fontFamily: 'inherit', ...style }}
       placeholder={placeholder} />
@@ -131,6 +151,7 @@ function AddItemRow({ onAdd, t }: AddItemRowProps) {
       </td>
       <td style={{ padding: '4px 6px' }}>
         <input value={price} onChange={e => setPrice(e.target.value)} onKeyDown={e => e.key === 'Enter' && handleAdd()}
+          onPaste={e => { e.preventDefault(); let t = e.clipboardData.getData('text').trim().replace(/[^\d.,-]/g, ''); const lc = t.lastIndexOf(','), ld = t.lastIndexOf('.'), dp = Math.max(lc, ld); if (dp > -1) { t = t.substring(0, dp).replace(/[.,]/g, '') + '.' + t.substring(dp + 1) } else { t = t.replace(/[.,]/g, '') } setPrice(t) }}
           placeholder="0,00" inputMode="decimal" style={{ ...inp, textAlign: 'center' }} />
       </td>
       <td className="hidden sm:table-cell" style={{ padding: '4px 6px', textAlign: 'center' }}>

client/src/components/Planner/ReservationModal.tsx

@@ -678,7 +678,8 @@ export function ReservationModal({ isOpen, onClose, onSave, reservation, days, p
               <div style={{ flex: 1, minWidth: 0 }}>
                 <label style={labelStyle}>{t('reservations.price')}</label>
                 <input type="text" inputMode="decimal" value={form.price}
-                  onChange={e => { const v = e.target.value; if (v === '' || /^\d*\.?\d{0,2}$/.test(v)) set('price', v) }}
+                  onChange={e => { const v = e.target.value; if (v === '' || /^\d*[.,]?\d{0,2}$/.test(v)) set('price', v.replace(',', '.')) }}
+                  onPaste={e => { e.preventDefault(); let t = e.clipboardData.getData('text').trim().replace(/[^\d.,-]/g, ''); const lc = t.lastIndexOf(','), ld = t.lastIndexOf('.'), dp = Math.max(lc, ld); if (dp > -1) { t = t.substring(0, dp).replace(/[.,]/g, '') + '.' + t.substring(dp + 1) } else { t = t.replace(/[.,]/g, '') } set('price', t) }}
                   placeholder="0.00"
                   style={inputStyle} />
               </div>